diff --git a/pyproject.toml b/pyproject.toml
index 44c9654..fca0e90 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,7 @@ development = "python function/main.py --insecure --debug"
 
 # This special environment is used by hatch fmt.
 [tool.hatch.envs.hatch-static-analysis]
-dependencies = ["ruff==0.11.2"]
+dependencies = ["ruff==0.12.0"]
 config-path = "none"           # Disable Hatch's default Ruff config.
 
 [tool.ruff]